Developing replenisher material for use in image forming device
US4860050A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1987 |
| Grant date | Aug 22, 1989 |
| Priority date | — |
| Expiry date | Jul 28, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing replenisher material or a replenisher liquid developer to be supplied to a developer tank of an electrostatic copying machine comprises 1000 parts by weight of a carrier liquid composed mainly of aliphatic hydrocarbon and 200 or 1200 parts by weight of toner particles composed mainly of a binder resin and a pigment. The toner concentration of the replenisher liquid developer is high enough to prevent an overflow from the developer tank, allow many copies to be produced by the copying machine, and prevent a solvent shock. The toner particles, when added to the carrier liquid, can immediately and well be dispersed in the carrier liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.